SC.SimiValley

Good move. I'm using those plastic furniture sliders now. As I recall, I used to just pick the A1's up and move them around. Not trying that anymore. I play classical music through old Yamaha separates. CD's and KUSC on the tuner. My turntable is in use by my daughter who has recently discovered vinyl. She is playing them through a Yamaha receiver and a pair of KEF bookshelf speakers. My next experiment will be to connect a Chromebox computer to my preamp and see how music from the internet sounds on the Allison's. Steve

I have been oblivious to the audio world for the last couple of decades. Only learned of Allison Acoustics demise when I started looking for the replacement woofers. Also discovered Audio magazine ceased publication in 2000. Always looked forward to their October equipment directory ( I still have the Oct. 1999 issue). IC20's must be awesome. Although they would be too much for my skinny arms to move around. When ever I move the One's, I sometimes think, maybe I should have purchased the lighter weight Two's, which I auditioned at the same time. Naw! I made the right choice and you probably did too.

You may be right. I’ve only had these woofers for a week, so time will tell. They still sound good to my non-audiophile ear. I recently retired and was horrified to discover the deterioration in the Allison woofers that hadn’t been played for awhile. Rebuilding did not seem to be an option that I wanted to get into so I looked for the simple solution of just replacing the woofers with something I could put in myself. I made some charts and compared available woofers with the Allison specs posted online. It was immediately apparent that I would not be able to duplicate the originals. This meant I would have to be satisfied with something that was different. Not wanting to do any cabinet work, my first criteria was fit. It seems many 10” woofers are too large for the Allison grill boards. That narrowed my choices considerably. The Hertz were not in my price range, but as luck would have it, a pair popped up on Ebay and then Amazon for about 1/3 of retail. The specs don’t seem to be that far off, even exceeding the originals in some areas. I’m not a speaker builder so I can only relate to what I’ve read online as to what is important. They are different but that may not be a bad thing. At any rate, they work, so I feel successful. Of course, ignorance is bliss. Thanks for your input.

Have 4 Allison One 10" woofers that need complete reconing. Free to anyone who would want to undertake that project. I replaced with Hertz DS 250.3 woofers. Perfect drop in replacement. Bought my One's around 1980 in Woodland Hills, Calif. and its nice to have the bass back.